By Dr Ananya Mandal, MD. The main function of fibroblasts is to produce the extracellular matrix and collagen needed for animal tissues. Together, these form the structural framework of tissues in animals and play an important role in tissue repair.n some cases, epithelial cells may also produce fibroblasts, a process which is referred to as epithelialâmesenchymal transition (EMT). Conversely, fibroblasts sometimes undergo mesenchymalâepithelial transition (MET) to produce epithelia.
And the number one longest running scripted TV show isâ¦. 1. The Simpsons (1989-present) â The yellow-skinned cartoon is officially the longest running TV show in history with 22 years since first premiering with no signs of stopping. Fans have fallen in love with Homer, Marge, Bart, Lisa and Maggie along with the rest of Springfield over the cartoonâs 400+ episodes.
It also ties the procedural with Gunsmoke for the title of the longest-running live-action scripted series with ongoing characters. And since Gunsmoke was a half-hour show in its first six seasons, Law & Order is still technically the longest-running hour-long primetime show, despite the fact that the former aired more episodes. 3. South Park